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BIO NMDCAT Biological Importance of Water
nmdcat.online June 27, 2026

Regarding the function of a buffer system, its role is to stabilize a solution’s pH, a property that relies on water’s

A. Ability to form hydrogen bonds with the buffer components
B. Capacity to ionize and participate in the equilibrium with weak acids and bases
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C. High specific heat preventing temperature changes
D. Low viscosity allowing for rapid diffusion of buffer molecules

📝 Explanation

Water is the solvent in which buffers operate, and its ionization constant (Kw) is fundamental to the pH scale. A buffer's equilibrium (e.g., H₂CO₃ ⇌ H⁺ + HCO₃⁻) involves the release or absorption of H⁺ ions produced by water's interaction with the buffer components, resisting pH change.

📖 Additional Information

  • Ability to form hydrogen bonds with the buffer components
  • Capacity to ionize and participate in the equilibrium with weak acids and bases
  • High specific heat preventing temperature changes
  • Low viscosity allowing for rapid diffusion of buffer molecules

Water is the solvent in which buffers operate, and its ionization constant (Kw) is fundamental to the pH scale. A buffer's equilibrium (e.g., H₂CO₃ ⇌ H⁺ + HCO₃⁻) involves the release or absorption of H⁺ ions produced by water's interaction with the buffer components, resisting pH change.

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